Use empty for initializer pad
Use empty for initializer pad

Part of #358 on github. Based on contribution by Graham Russell (graham at ham1.co.uk)


git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1823900 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: c452351e1371dfb5683c7247d012964f56b5832a
ham1/jmeter,etnetera/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,benbenw/jmeter,apache/jmeter,benbenw/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter